diff --git a/src/main/java/PasswordManager.java b/src/main/java/PasswordManager.java
index 29960fd..f17f6f1 100644
--- a/src/main/java/PasswordManager.java
+++ b/src/main/java/PasswordManager.java
@@ -1,6 +1,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.nio.charset.StandardCharsets;
@@ -12,6 +13,9 @@ public class PasswordManager implements PasswordManagerInterface {
     boolean running = true;
     InputStream inputStream = System.in;
     OutputStream outputStream = System.out;
+    ArrayList<Vault> vaults = new ArrayList<>();
+    int selectedVaultId = -1;
+    ArrayList<String> vaultOperationOptions = new ArrayList<>();
 
     public static void main(String[] args) {
         PasswordManager pm = new PasswordManager();
@@ -26,11 +30,6 @@ public class PasswordManager implements PasswordManagerInterface {
         println("Hello World");
     }
 
-    @Override
-    public void listVaults() {
-        println("Vaults:");
-    }
-
     private void println(String output) {
         try {
             outputStream.write((output + "\n").getBytes(StandardCharsets.UTF_8));
@@ -39,6 +38,18 @@ public class PasswordManager implements PasswordManagerInterface {
         }
     }
 
+    @Override
+    public void listVaults() {
+        println("Vaults:");
+        for (int i = 0; i < vaults.size(); i++) {
+            println("- vault id: " + i);
+        }
+    }
+
+    public void createNewVault() {
+        vaults.add(new Vault());
+    }
+
     @Override
     public void openVault() {
 
@@ -53,8 +64,10 @@ public class PasswordManager implements PasswordManagerInterface {
         sb.append("\nciip Gruppe 8 - Password Manager\n\n");
 
         sb.append("Menu:\n");
-        sb.append("- list vaults: l:\n");
-        sb.append("- select vault: v x (replace x with vault id)\n");
+        sb.append("- list vaults: l\n");
+        sb.append("- create new vault: v\n");
+        sb.append("- select vault and show operations: v x (replace x with vault id)\n");
+        sb.append("- select vault operation: o x (replace o with a operation id for the selected vault)\n");
         sb.append("- exit: e\n");
 
         println(sb.toString());
@@ -65,7 +78,9 @@ public class PasswordManager implements PasswordManagerInterface {
             running = false;
         } else if (input.equals("l")) {
             listVaults();
-        }  else if (input.startsWith("v")) {
+        } else if (input.equals("v")) {
+            createNewVault();
+        } else if (input.startsWith("v")) {
             String vaultAction = (input.replace('v', ' ')).trim();
             int vaultId = -1;
 
@@ -76,14 +91,16 @@ public class PasswordManager implements PasswordManagerInterface {
             }
 
             if (vaultId >= 0) {
+                selectedVaultId = vaultId;
+                println("\nVault " + vaultId + " selected.");
                 try {
                     int internalOptionCounter = 0;
-                    ArrayList<String> options = new ArrayList<>();
+                    println("\nAvailable vault operations:");
 
                     for (Method m : Class.forName("Vault").getDeclaredMethods()) {  // returns all declared methods including private or protected
                         try {
-                            if (Modifier.isPublic(this.getClass().getDeclaredMethod(m.getName()).getModifiers())) {  // filter out methods that are not public (using Modifier) or have arguments (using getDeclaredMethod)
-                                options.add(m.getName());
+                            if (Modifier.isPublic(Class.forName("Vault").getDeclaredMethod(m.getName()).getModifiers())) {  // filter out methods that are not public (using Modifier) or have arguments (using getDeclaredMethod)
+                                vaultOperationOptions.add(m.getName());
                                 println(internalOptionCounter + " - " + m.getName());
                                 internalOptionCounter++;
                             }
@@ -95,6 +112,30 @@ public class PasswordManager implements PasswordManagerInterface {
                     println("-- vaults not implemented yet");
                 }
             }
+        } else if (input.startsWith("o")) {
+            String operation = (input.replace('o', ' ')).trim();
+            int operationId = -1;
+
+            try {
+                operationId = Integer.parseInt(operation);
+            } catch (NumberFormatException e) {
+                println("-- please enter a valid operation id");
+            }
+
+            if (selectedVaultId < 0) {
+                println("-- a vault needs to be selected");
+            } else if (operationId >= 0 && operationId < vaultOperationOptions.size()) {
+                Vault vault = vaults.get(selectedVaultId);
+                try {
+                    println("Run selected operation '" + vaultOperationOptions.get(operationId) + "':");
+                    vault.getClass().getDeclaredMethod(vaultOperationOptions.get(operationId)).invoke(vault);
+                } catch (IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
+                    e.printStackTrace();
+                    println("-- selected operation failed");
+                }
+            } else {
+                println("-- please enter a valid operation id");
+            }
         }
     }
 }
diff --git a/src/test/java/PasswordManagerTest.java b/src/test/java/PasswordManagerTest.java
index c96f747..76bff98 100644
--- a/src/test/java/PasswordManagerTest.java
+++ b/src/test/java/PasswordManagerTest.java
@@ -46,7 +46,18 @@ class PasswordManagerTest {
         pm.inputStream = new ByteArrayInputStream("l\n".getBytes(StandardCharsets.UTF_8));
         pm.outputStream = outputStream;
         pm.showMenu();
-        assertTrue(outputStream.toString().endsWith("Vaults:\n"));
+        pm.createNewVault();
+        assertTrue(outputStream.toString().contains("Vaults:\n- vault id: 0\n"));
+    }
+
+    @Test
+    void menuNavigationCreateNewVault() {
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        pm.inputStream = new ByteArrayInputStream("v\n".getBytes(StandardCharsets.UTF_8));
+        pm.outputStream = outputStream;
+        int vaultCount = pm.vaults.size();
+        pm.showMenu();
+        assertEquals(vaultCount + 1, pm.vaults.size());
     }
 
     @Test
@@ -58,6 +69,39 @@ class PasswordManagerTest {
         assertFalse(outputStream.toString().endsWith("-- vaults not implemented yet\n"));
     }
 
+    @Test
+    void menuNavigationSelectVaultOperation() {
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+
+        pm.inputStream = new ByteArrayInputStream("v\n".getBytes(StandardCharsets.UTF_8));
+        pm.outputStream = new ByteArrayOutputStream();
+        pm.showMenu();
+
+        pm.inputStream = new ByteArrayInputStream("v 0\n".getBytes(StandardCharsets.UTF_8));
+        pm.outputStream = new ByteArrayOutputStream();
+        pm.showMenu();
+
+        pm.inputStream = new ByteArrayInputStream("o 0\n".getBytes(StandardCharsets.UTF_8));
+        pm.outputStream = outputStream;
+        pm.showMenu();
+        assertTrue(outputStream.toString().contains("Run selected operation"));
+
+        outputStream = new ByteArrayOutputStream();
+
+        pm.inputStream = new ByteArrayInputStream("o foobert\n".getBytes(StandardCharsets.UTF_8));
+        pm.outputStream = outputStream;
+        pm.showMenu();
+        assertTrue(outputStream.toString().endsWith("-- please enter a valid operation id\n"));
+
+        outputStream = new ByteArrayOutputStream();
+
+        pm.inputStream = new ByteArrayInputStream("o 1000\n".getBytes(StandardCharsets.UTF_8));
+        pm.outputStream = outputStream;
+        pm.showMenu();
+        System.out.println(outputStream);
+        assertTrue(outputStream.toString().endsWith("-- please enter a valid operation id\n"));
+    }
+
     @Test
     void showMenu() {
         ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
@@ -88,6 +132,13 @@ class PasswordManagerTest {
         assertTrue(outputStream.toString().startsWith("\nciip Gruppe 8"));
     }
 
+    @Test
+    void createNewVault() {
+        int vaultCount = pm.vaults.size();
+        pm.createNewVault();
+        assertEquals(vaultCount + 1, pm.vaults.size());
+    }
+
     private ByteArrayInputStream getEmptyStringInputStream() {
         return new ByteArrayInputStream("".getBytes(StandardCharsets.UTF_8));
     }